ElastiCache cluster does not document ARN output field

[kalyansundar]

HI,
I uable to get a elastic cache arn value after created the resource. Could you please give some suggestion to get that value ?

I have tried with data and output blocks, and using the pycharm with terraform support plugin

[gdavison]

Hi @kalyansundar. Unfortunately, the field is not in the documentation.

The field is named arn, so to access the ARN of the following ElastiCache cluster

resource "aws_elasticache_cluster" "example" {
    ...
}

use aws_elasticache_cluster.example.arn.

[kalyansundar]

hi @gdavison I am getting the following error message

Step-1

Actual my code is given below

resource "aws_elasticache_replication_group" "default" {
  for_each = { for item in var.replication_groups : item.name => item }

  replication_group_id          = each.value.name
......

locals {
 arn = [for replication_group in aws_elasticache_replication_group.default : (replication_group.arn)]
 }

switched into terraform console
Enter this command on terraform console **local.arn**

Error: Unsupported attribute

 arn = [for replication_group in aws_elasticache_replication_group.default : (replication_group.arn)]
This object does not have an attribute named "arn".

Step-2

And then i have tried by general way
code

resource "aws_elasticache_replication_group" "default" {
  replication_group_id = "testing4"
  replication_group_description = "testing4-desc"
  number_cache_clusters = 2
  node_type = "cache.t3.micro"
  engine_version = "5.0.5"
  subnet_group_name = "redis-subnet-qa-group"
  security_group_ids = ["ffffffff",]
  maintenance_window = "sun:02:00-sun:04:00"
  apply_immediately  = true

  # Options we mandate
  automatic_failover_enabled = true
  auto_minor_version_upgrade = true
  engine                     = "redis"
  at_rest_encryption_enabled = true
  port                       = 6379



}

output "test" {
  value = aws_elasticache_replication_group.default.arn
}

Error: Unsupported attribute

  on main.tf line 168, in output "test":
 168:   value = aws_elasticache_replication_group.default.arn

This object has no argument, nested block, or exported attribute named "arn".

[angelabad]

Hi, @gdavison is talking about aws_elasticache_cluster and @kalyansundar about aws_elasticache_replication_group. So,

• aws_elasticache_cluster: hasnt arn documented
• aws_elasticache_replication_group: hasnt arn attribute in go code

I will try to fix this in next days.

Bye!

[angelabad]

Hi, @bflad or @gdavison , could you review this?

Thanks!

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!